Keyless padlock.



No. 861,991. PATENTED JULY 3,0, 1907.

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Gf. W. KONE.

KEYLESS PADLOCK.

APPLICATION FILED SMT. so, 1904..

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GEORGE W. KONE, OF KANSAS CITY, MISSOURI.

KEYLESS PADLOCK.

Specification of Letters Patent.

Patented July 30, 1907.

Application filed September 30,1904. Serial No. 226,648.

To all whom it may concern:

Be it known that I, GEORGE W. KONE, a citizen ef the United States, residing at Kansas City, in the county of .I ackson and State of Missouri, have invented new and useful Improvements in Keyless Padlocks, of which the following is a specification.

Hy invention relates to a keyless padlock, of the variety wherein a number of tumblers or movable disks are made use of. in locking and unlocking the padlocks, which disks can be shifted or changed so as to form different combinations, and which padlock may be easily manipulated, and which comprises a minimum number of parts. l

To the above purposes, my invention consists in certain novel features of construction and arrangement of parts, which will be hereinafter mo're fully set forth, pointed out in the claims, and illustrated in the accompanying drawings, in which'.-

Figure 1 is a side elevation of a padlock of my improved construction; Fig. 2 is a vertical section taken through the center of the lock; Fig. 3 is a vertical section taken through the center of the padlock at right angles to the plane on which the section seen in Fig. 2 is taken; Fig. 4 is a horizontal section taken on the line A-A of Fig. 2; Fig. 5 is a plan view of the d'isk which forms the bottom of the padlock; Fig. is a plan view of the under side of the outer ring of each tumbler; Fig. 7 is a plan view of one of the inner rings of each tumbler; Fig. 8 is a plan view of the under side of the inner ring; Fig. 9 is a side elevation of the bolt which passes through the center of all of the tumblers.

Referring by numerals to the accompanying drawings z-2 designates the cylindrical cap which forms the top of the padlock, and immediately b'eneath said cap in succession are arranged the tumblers 3, 4, and 5; and arranged immediately beneath the lower tumbler 5 is a disk 6, which forms the bottom of the padlock. I have shown but three tumblers in the drawing, but it will be readily understood that a greater or less number of tumblers may be provided in a complete padlock.

A hook, or shackle, 7 is arranged in and above the cap 2; and formed integral with and depending from the under side of the center of the cap is a sleeve 8, the lower end of which is externally screw threaded, as designated by 9; and formed through the upper end of this sleeve is a pair of alined apertures l0. Arranged to slide'against the under side of the cap 2, through these apertures 10, is a latch 11, the forward end of which engages in a notch 12 formed in one end of the shackle 7; and formed in the under side of this latch adjacent its rear end is a shoulder 13, and the rear end of said latch bears against a leaf spring 14 which is held between a pair of lugs 15 fixed to the cap 2. Fulcrumed on a pin 16 which passes transversely through the upper end of the sleeve S is a dog 17 the ends of which operate through the apertures 10; and integral with the top of said dog is a lug or shoulder which opposes and bears against the shoulder 13. Formed in the sleeve 8, and at right angles to the apertures l0, is a vertically disposed slot 18, which extends to the lower end of said sleeve; and arranged to slide vertically in said sleeve is a bolt 19 provided on one side with a vertically disposed rib 20 which rides in the slot 18; and formed integral-with this rib 20 is a series of outwardly projecting triangular lugs 21, 22, and 23, the bottom of the latter, which is the lowermost, being slightly inclined or beveled, (see Fig. 9.)

The end of the shackle 7, opposite the end provided with the notch 12, is hinged upon a pin 24 seated in the cap 2, and integral with this end of the shackle is a depending lug 25 which bears against a 'fiat spring 26 arranged in the cap 2. This spring is engaged by the lug when the shackle is closed, and when said shackle is released, the resiliency of the spring throws' the free end of the shackle upwardly, thus opening the padlock.

The outer rings 3, 4, and 5 of the tumblers are identical in form and construction, and the inner face of periphery of each ring is formed with a series of equal sized notches, such as 27, the faces of which notches incline inwardly from the bottoms of the rings to the tops thereof. The inner rings 33 of each tumbler are of such a size as to :[it within the outer rings, and the edges of said rings being provided with angular lugs 2S which are formed to fit snugly in the notches 27: and formed through the cent-ers of said inner rings are circular apertures 29 through which the sleeve 8 passes when the parts of the padlock are assembled. Formed vertically through each ring 33 and communicating with the aperture 29 therein is a notch 30, through which the lugs 21, 22, and 23 pass when the bolt 19 is being inserted in the padlock; and which notches must register when the padlock is unlocked.

34 designates the flat under face ofeach of the inner rings of the tumblers, andthe opening 29 through the center of each inner ring is countersunk on said lower face to form an annular opening to allow for .the corresponding triangular lug carried by the bolt 19, andthe counter-sunk face of each ring is provided with a series of radially arranged notches 3l which are intended to receive the top edges of the triangular lugs whenever the bolt 19 is shifted upwardly by an unauthorized person in endeavor-ing to manipulate the padlock, which movement locks the rings against rotation, thus confusing the person attempting to unlock the padlock. When the bolt 19 is in its normal position, the rings of each set of tumblers may be rotated freely upon the sleeve S for the reason'that the lugs 21, 22, and 23 are .free or disengaged from the notches 31.

the opening therethrough, is a series lof radially arranged notches 35 in which the lower corner of the lower lug 23 engages when the bolt 19` is in its normal position. This arrangement provides against the unscrewing of: the disk 6 until the bolt 19 is moved upwardly to elevate the lug 23 from the notch in which it engages. Formed integral with the periphery of this disk 6, on opposite sides thereof, are lugs 37 and 38 by means of which said disk may be engaged when screwed onto or unscrewed from the sleeve 8.

The upper end 3G of the bolt 19 normally engages against the under side of the forward end of the dog 17, and the forward end of the latch 11 slides through a perforated lug 39 formed integral with the under side of the cap 2, adjacent the opening therein through which the free end of the shackle passes.

The outer faces of the peripheries of the outer rings 3, 4, and 5 are dividedby the vertically arranged notches 40, 41, 42, 43, 44, 45, 46, 47, 48, and 49, so as to form the equal sized spaces a, b, c, d, e, f, g, h, t', and j; and formed integral with the opposite sides of each ring in two of said spaces are lugs, by means of which said rings are rotated when manipulating the padlock.

Formed on the face of the cap 2, in direct alinement with the vertical slot 18, is an indicating mark, designated by 0, -(Fig. 1,) and which serves as aguide for bringing the tumblers into proper position to unlock the padlock.

The faces a to j, inclusive, on the rings are provided with suitable marks, such as letters or numerals, and any set of three of said letters or numerals can be used as a key or combination for the padlock. For instance, assuming that the indicating characters are letters and that the combination for the padlock is a-b-c, the inner ring 33 of the upper tumbler is so positioned in the outer ring as that the notch 30 in said inner ring is directly opposite the space on said outer ring which bears theletter ag and, in a like manner the inner rings of the two remaining tumblers are so positioned lin the corresponding outer rings as that the notches 30 are directly opposite the corresponding spaces marked (1)77 HC?) l When the padlock having the abovev combination is properly assembled and locked, the leaf spring 14 bearing against the latch 11 forces the forward endv of the dog 17 downwardly, and consequently exerting a downward pressure on the bolt 19, and causing the lower lug to engage in one of the notches 35. The person knowing the proper combination for unlocking the padlock shifts the top ring 3 so as to bring the spacel l'marked a directly below the indicating line 0, next shifts the center ring 4 so as to bring the space b in alinement with the space a of the upper ring, and finally rotates the lower ring 5 so as to bring the space marked c into alinement with the proper spaces of the upper rings. These movements bring all the notches 30 into alinement with the slot 18 and triangular lugs carried by the bolt 19, and the operator now exerts upward pressure on the lower end of said bolt, and, as a result, the triangular lugs are moved upwardly through the notches 30, the dog 17 is shifted upon its against the shoulder 13, thus moving the latchill rearwardly against the pressure of the spring 14, releasing the shackle 7, which springs upwardly bey the resiliency of the spring 26.

The combination of the padlock can be quickly the corresponding outer rings after the disk G has been unscrewed from the sleeve 8, which action can easily take place when the bolt 19 is slightly elevated to disengage the lug 23 from the notch 35, in which it has been seated,

The ring forming the tumblers can be freely rotated on the sleeves 8 except when the bolt 19 is elevated, which movement causes the triangular lugs to engage in certainof the notches 31. i

I claim 1. A keyless padlock, comprising a cap, a sleeve depending therefrom, a shackle pivotally arranged in the cap, means carried by the cap for locking said shackle, a bolt arranged to slide in the sleeve and to release the locking sleeve and constructed to lock the bolt against vertical movement, a disk mounted on the lower end of the sleeve below the lowermost tumbler, and means carried by the bolt for normally engaging and maintaining the disk against removal from the sleeve substantially as speclied. 2. A keyless padlock, comprising a cap, a sleeve depending therefrom, a shackle pivotally arranged in the cap, means carried by the cap for locking said shackle, a bolt arranged to slide in the sleeve and to release the locking means, a series of tumblers arranged for rotation on the sleeve and constructed to lock the bolt against Vertical movement, a disk mounted on the lower end of the sleeve below the lowerrnost tumbler, and means carried by the bolt 'for engaging the tumblers and locking them against rotation when said bolt is partially elevated; substantially as specified.

In testimony whereof I aflix my signature in the presence of two witnesses.

'l GEORGE W. KONE. Witnesses:

M. N. HIGDON, M. L. LANGE.

changed by shifting any one or all of the inner rings inV moans, Va series of tumblers arranged for rotation on they pivot point, and the shoulder on topv of said dog bears 

